best split second cards mtg A new cycle : r/custommagic The 46 Best Split Cards

A mana ability produces mana as part of its effect

Another possibility would be more Collectors Edition cards (with gold borders)

Putting the creature straight into play is what really makes this card powerful, and you might get some value out of sacrificing a creature depending on how you built your deck

Judge Magister Gabranth Rarity: Uncommon TYPE: Legendary Creature SUBTYPE: Human Advisor Knight CMC: 2 Mana cost: USD: $0.20 EUR: 0.12 TIX: 0.03 EDHREC RANK: 9401 (2/2) Menace (This creature can't be blocked except by two or more creatures.) Whenever another creature or artifact you control dies, put a +1/+1 counter on Judge Magister Gabranth